DWSD.md
v1.0

Mixing-Proofing WIP Limit

type
agreement
agreement-type
work
for-domain
Bakehouse
agreement-of
Bakehouse Production Board › Mixing-Proofing
version
1.0
decision_date
2026-05-26
review_date
2026-08-26
created_at
2026-06-28

Driver and Requirement

The proofers and mixer are the Bakehouse‘s tightest constraint in the morning window. When too many batches enter mixing and proofing at once, dough over-proofs while it waits for an oven, and quality drops. The flow needs a cap that protects the bottleneck.

Who is responsible for what?

  • Bakehouse — keeps no more than three batches in Mixing-Proofing at any time and pulls the next batch only when a slot frees up.
  • Head Baker — decides batch sequence and which line takes a freed slot.
  • Bakery Operations — reviews the limit if dispatch on-time rates slip.

Description

The Mixing-Proofing column on the Bakehouse Production Board carries a WIP limit of three ([3]). It is a pull policy, not a target: a new batch starts only when an in-flight batch moves on to Baking.

Evaluation Criteria

  • No batch over-proofs while waiting for an oven.
  • Morning dispatch on-time rate holds with the limit in place.

Concerns

If demand spikes, three concurrent batches may be too few to clear the morning range — the review exists to retune the number against real throughput.

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Mixing-Proofing WIP Limit.md
---
type: agreement
agreement-type: work
for-domain: "[[Bakehouse]]"
agreement-of: "[[Bakehouse Production Board]]#Bakehouse Production/col:Mixing-Proofing::in"
version: "1.0"
decision_date: 2026-05-26
review_date: 2026-08-26
created_at: 2026-06-28
---
## Driver and Requirement


The proofers and mixer are the [[Bakehouse]]'s tightest constraint in the morning window.
When too many batches enter mixing and proofing at once, dough over-proofs while it waits
for an oven, and quality drops. The flow needs a cap that protects the bottleneck.


## Who is responsible for what?


- [[Bakehouse]] — keeps no more than three batches in `Mixing-Proofing` at any time and
  pulls the next batch only when a slot frees up.
- [[Head Baker]] — decides batch sequence and which line takes a freed slot.
- [[Bakery Operations]] — reviews the limit if dispatch on-time rates slip.


## Description


The `Mixing-Proofing` column on the [[Bakehouse Production Board]] carries a WIP limit of
three (`[3]`). It is a pull policy, not a target: a new batch starts only when an in-flight
batch moves on to `Baking`.


## Evaluation Criteria


- No batch over-proofs while waiting for an oven.
- Morning dispatch on-time rate holds with the limit in place.


## Concerns


If demand spikes, three concurrent batches may be too few to clear the morning range — the
review exists to retune the number against real throughput.