• Biodynamic Pfeiffer™ Compost Starter - The Josephine Porter Institute
  • Biodynamic Pfeiffer™ Compost Starter - The Josephine Porter Institute
  • Biodynamic Pfeiffer™ Compost Starter - The Josephine Porter Institute
  • Pfeiffer™ Compost Starter 50-unit bulk package
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The Josephine Porter Institute

Tosaitheoir Múirín Bithdhinimiciúil Pfeiffer™

Tosaitheoir Múirín Bithdhinimiciúil Pfeiffer™

$15.97 USD
$15.97 USD $15.97 USD
Díol Díolta amach
Ríomhtar an loingseoireacht ag an tseiceáil amach.
  • 5 stars: 11 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Astrid Beck
Fermentation

I think, that the Biodynamic Pfeiffer Compost Starter is really miraculous, taking in consideration not only how much work it takes to create them, but also maybe love and enthusiasm, that eventually comes to light if you touch anything in nature.
Each time I pass by one of my compost piles I can’t help, that sweet smell of fermentation really draws me in that direction or I even was able to smell it from my backyard patio.

Thank you so much! We'd love to see a picture. We can almost smell it from here!

C
Chris Thompson

Although each batch I get is somewhat different, my finished compost always turns out digested. My customers won’t let me retire!

You are absolutely correct! Each batch is its own dynamic living thing and no two are exactly the same. Nonetheless, we add back portions from previous batches -- all the way back to Hugh Courtney's time! -- to guarantee an inherited legacy. It is our hope that they always service you well. Thank you, as always, for your support and your work healing the earth.

m
michael gray
Pfeiffer Compost Starter

I have used the Pfeiffer Compost Starter for almost 30 years. Wouldn't seem right to not use it. My compost goes through a two year cycle to finished compost and is far superior to the store bought varieties.

C
Chris Thompson

I have been using this product for many years and this batch smells very different. I will be monitoring it’s performance and let you know of my results.

P
Patricia Laverty-Rolf
Pfeiffer

I’ve been working with this rich healthy substance for a bit now. Thank you to Josephine porter for your service

D
Daniel Boyd
Powerfully efficient and very affordable

Very nice, informative package. I learned much just from the instructions! Everything feels very well-tended and positive ✨️ You'll be hearing from me again. Thank you.

H
Heidi Miriam Ward
Compost pile?

As a widowed elderly woman I feel overwhelmed by the idea of building a compost pile. I do have a tumbler though that my kitchen scraps decompose in. To read that I can put the compost starter in a saltshaker and sprinkle some over my kitchen collection of scraps made me so happy! Thank you for this idea that can meet me where I am right now!

G
Gerlinde Smith
Excellent for Compost Bins

The Compost Starter works very efficiently and quickly in creating a colloidal compost. It is ideal for compost bins.

M
Mary Joann Oresti
Yes, in my backyard !!!

The compost starter and spray are also perfect for those who can only work on a small scale. I use it on my yard and spread some around the parks near me.

M
Michael Navascues

I have used it for many years in my small compost pile; it does help breakdown the materials I put into it.

T
Tyrone Kelley

Biodynamic Pfeiffer™ Compost Starter

Féach na sonraí iomlána

Cur síos

Is ionann aonad amháin agus 1 unsa.
Déileálann aonad amháin le 2–4 chairn.

Ag an am céanna:

Cad a dhéanann sé:
Cuireann sé tús le carnáin mhúirín agus cabhraíonn sé leo briseadh síos níos tapúla agus níos iomláine. Tá sé an-chabhrach nuair nach bhfuil ábhair mhúirín oiriúnach nó nuair a bhíonn an aimsir deacair.

Conas a úsáid:
Measc 2 spúnóg bhoird de thosaitheoir tirim le galún amháin d'uisce te. Lig dó suí ar feadh 6–12 uair an chloig. Croith thar shraitheanna carn múirín.

Comhábhair:
Meascán coipthe tirim lena n-áirítear BD 500 caolaithe, BD 502–507, coipthe fiáin (gan giostaí ná baictéir saothraithe curtha leis), go leor gníomhairí tairbhiúla eile

Sonraí Táirge:

Is oideas speisialaithe é Tosaitheoir Múirín Pfeiffer™ ​​arna fhorbairt ag an Dr. Ehrenfried Pfeiffer chun oibríochtaí múirínithe a fheabhsú.

I measc ár n-earraí is mó a dhíoltar, tá táirgí Pfeiffer™ ​​a bunaíodh sna 1940idí ag an Dr. Ehrenfried Pfeiffer leis an aidhm cabhrú le bithdhinimic a dhéanamh níos inrochtana do ghairdíní baile, feirmeoirí traidisiúnta, agus múiríneoirí. Is é JPI úinéir eisiach na bhfoirmlí dílseánaigh seo. Tá na hullmhúcháin múirín go léir (BD #502-507), Aoileach Adharc BD (#500) móide meascán tiubhaithe de shraitheanna saothraithe de bhaictéir ithreach tairbhiúla, einsímí, fungais, agus fachtóirí a chuireann fás plandaí chun cinn a mhéadaíonn iomadú miocrorgánach as a dtagann dianscaoileadh ábhar níos tapúla, cobhsú nítrigine, agus claochlú go húmas collóideach sa Pfeiffer™.

Tugann Tosaitheoir Múirín Pfeiffer™ ​​buntáistí an tSraith Iomlán d'Ullmhóidí Múirín Bithdhinimiciúla chomh maith le raon leathan cultúr agus einsímí micribhitheolaíocha éagsúla.

Comhdhéanamh Tosaitheoir Múirín BD Pfeiffer™ ​​Tá na hullmhóidí talmhaíochta bithdhinimiciúla BD #500, #502, #503, #504, #505, #506, agus #507 sa Tosaitheoir Múirín cumhachtach seo, rud a thugann a éifeachtacht uathúil don táirge seo. Tá meascán tiubhaithe de roinnt cineálacha saothraithe de bhaictéir ithreach tairbhiúla, einsímí, fungais, agus fachtóirí a chuireann fás plandaí chun cinn ann freisin. Nuair a ullmhaítear i gceart é lena úsáid, is féidir le gach unsa níos mó ná 1.36 billiún CFU (aonaid fhoirmithe coilíneachta) d'orgánaigh thairbhiúla a thabhairt.

Buntáistí Tosaitheoir Múirín BD Pfeiffer™ ​​Cuidíonn an Tosaitheoir Múirín seo le cinntiú go dtugtar isteach i gceart na n-ullmhóidí BD le heolas íosta ar thalmhaíocht bhithdinimiciúil. Níl aon chomparáid leis ina éifeacht múirínithe, rud a fhágann go ndéantar miondealú tapa ar ábhar. Faoi na coinníollacha cearta taise, aeraithe, agus ábhair orgánaigh (mar a thugtar sa chóimheas Carbóin/Nítrigine thíos), déanfaidh an Tosaitheoir Múirín BD:

  • Díghrádaigh ábhar orgánach amh go tapa, ag briseadh síos é ina chomhdhúile níos simplí
  • Athchóimeáil na comhdhúile simplí seo i humus casta fadtéarmach
  • Nítrigin a shocrú ón aer agus é a chur ar fáil ar shlí eile le haghaidh cothú plandaí
  • Infhaighteacht mianraí a mhéadú, ag athrú iad go dtí an fhoirm atá ar fáil dóibh
  • Coinnigh an ithir agus feabhsaigh a struchtúr
  • Cosc a chur ar sceitheadh ​​agus ar níochán ithreach, agus creimeadh a laghdú nó a dhíchur

Tugann an tréith speisialta a bhaineann le húmas an Tosaitheora Múirín BD múirín ardchaighdeáin atá lán d’orgánaigh thairbheacha ithreach agus húmas collóideach. Áirítear leis na buntáistí:

  • Struchtúr ithreach feabhsaithe. Is fusa an ithir a ullmhú agus a shaothrú.
  • Draenáil uisce feabhsaithe. Glactar leis an uisce níos éasca agus téann sé níos doimhne.
  • Spreagtar fás fréimhe.
  • Tá scaoileadh nítrigine seasta agus gan aon chaillteanais.
  • Caomhnaítear cothaithigh agus cuirtear ar fáil iad. Éascaítear ionsú cothaithigh.
  • Cothaítear agus cothaítear micrea-bheatha ithreach sláintiúil.

Is leor aonad amháin (unsa amháin) de Thosaitheoir Múirín BD le haghaidh thart ar 1 go 1.5 tonna (nó 1.5 go 2.25 slat ciúbach) d'ábhar. Is é aonad amháin an chainníocht is lú is féidir linn a sheoladh. Beidh ciúb ábhair i dtonna amháin a thomhaiseann 4.5' x 4.5' x 4.5' ar an meán i gcás fhormhór na n-ábhar atá beartaithe le haghaidh múirín. Ba chóir go mbeadh gníomhachtú unsa amháin leordhóthanach le haghaidh suas le 1.5 tonna.

Chun eolas a fháil faoi ghníomhachtú agus cur i bhfeidhm, tabhair cuairt ar: Treoracha Úsáide Mionsonraithe do Thosaitheoir Múirín Pfeiffer BD

Tabhair faoi deara: Féadfar cainníochtaí os cionn 1 a chur i mála le chéile.

Published results & practical experience

A practical way to bring biodynamic preparations into your composting routine.

Pfeiffer Compost Starter is a prepared inoculant for compost materials. Published accounts describe its use in garden heaps and farm windrows, offering practical examples of the product at work.1, 2, 3

A garden-heap comparison

In a report published in English in 1967, Katharina Hanke compared two heaps made from the same plant wastes. One received Pfeiffer's B.D. Compost Starter; the other received the individual biodynamic preparations.

After five weeks Heap No. 1 was completely rotted, while Heap No. 2 was still in the midst of the process.2

This was a two-heap observation, with one heap per treatment and no untreated heap. “Completely rotted” was the author's assessment. When the finished composts were used for lettuce and kohlrabi, she observed no difference in growth or total production.2

A farm windrow routine

Patricia Smith's 2003 interview with Joe Francis describes three windrows of roughly fifty tons each, built from cow manure and hay. Francis used Compost Starter during construction and turned the material every seven days. The account reported compost ready for use after twenty-one days.3

The timing belongs to that farm's materials and management. The interview does not provide an untreated comparison or a standardized compost-maturity test.3

Put the experience to work

Use the current product instructions to prepare and apply Compost Starter. Keep track of your feedstocks, moisture, turning dates and progress toward readiness. Published experiences provide useful comparisons for your own composting routine.12

Sources for this product section
  1. Josephine Porter Institute, current product descriptions: Biodynamic Pfeiffer Compost Starter and Pfeiffer Field and Garden Spray. Consulted September 27, 2026. These identify current products and intended applications; the historical comparisons are documented separately below.
  2. Katharina Hanke, "An Experiment with Dr. Pfeiffer's B.D. Compost Starter," translated by Norman Macbeth, Bio-Dynamics 82 (Spring 1967), pp. 25-26; quotation and crop observations p. 26. Reprinted from Lebendige Erde, March/April 1967. One heap per treatment.
  3. Patricia Smith, "Interview with Joe Francis," Applied Biodynamics 40 (Spring 2003), pp. 3-6; windrow process pp. 4 and 6; twenty-one-day quotation p. 6. Practitioner interview.
  4. Josephine Porter Institute, Pfeiffer Compost Starter instructions, Field and Garden Spray instructions, and preparation-instructions directory. Consulted September 27, 2026. Use the current instructions supplied for the product being applied.
Explore the full references and study context →

Frequently Asked Questions

How do I use the Biodynamic Pfeiffer™ Compost Starter?

Moisten one unit in a flat pan or dish with just enough water to make it pasty. Allow it to activate for 12–16 hours or overnight, then dilute the paste in enough water to thoroughly moisten each compost-pile layer as the pile is built.
What are the benefits of using the Biodynamic Pfeiffer™ Compost Starter?

JPI Starter brings BD 500, all six BD 502–507 compost preparations, and beneficial microbial cultures together for an actively managed pile. In a controlled 2026 comparison, compost treated with the included BD 502–507 set supported greater growth of tested compost-active bacteria at 120 days than corresponding untreated compost, especially in a mixed plant-and-manure pile. As the pile matures, look for these practical quality cues from JPI: a woodsy smell, uniform dark-brown color, and soil-like texture. Study: https://doi.org/10.1186/s40538-025-00891-y
How much compost can one ounce of Pfeiffer™ Compost Starter treat?

One ounce can treat approximately 1 to 1.5 tons of compost material, which is around 1.5 to 2.25 cubic yards.
What makes the Pfeiffer™ Compost Starter unique?

It combines BD 500, the complete BD 502–507 compost-preparation set, and beneficial cultures in one easy-to-distribute, one-ounce Starter. Activate it as a paste for 12–16 hours or overnight, then dilute and distribute it through each layer as the pile is built. One unit treats about 1–1.5 tons of starting compost material. JPI instructions: https://go.jpibd.org/instructions-pfeiffer-compost