Skip to content

SOP — Mash Additions

FUERST WIACEK Version 1.2 | Brewhouse — brew day | Frequency: per brew

Purpose

This SOP covers the preparation and addition of mash salts (Maischesalze) into the mash dosing device. Salts are dosed automatically into the mash by the Botec recipe — your job is to prepare and load them correctly before mashing begins.

PPE Required

  • Gloves (especially when handling CaCl₂)
  • Safety goggles

Risks

Hazard Risk
CaCl₂ (calcium chloride) Highly corrosive to stainless steel — rinse all contact surfaces immediately and thoroughly
Splashing Salt solution can splash when added — add carefully

Equipment

  • Printed recipe
  • 5 L pitcher with a handle ("Kanne")
  • Mash dosing device (attached to mash tun)

Timing

Mash additions must be prepared before mashing in. At the latest, begin preparation when malt is milling or when malt loading is complete.

Process

1. Prep Salts

  1. Pull all mash salts as specified in the recipe.
  2. Weigh or measure each salt accurately.

2. Mix Solution

  1. Add all salts to the 5 L pitcher (Kanne).
  2. Add water and mix thoroughly until fully dissolved.

3. Add to Dosing Device

Mash dosing device — closed, water valve in correct position

  1. Close the water valve on the dosing device first.
  2. Open the dosing device lid.
  3. Add the salt solution carefully — avoid splashing.

Warning

If you are using CaCl₂ (calcium chloride), rinse down all contact surfaces immediately and thoroughly with a large amount of water after adding. CaCl₂ is corrosive to stainless steel. Keep water away from any sensors and their lines.

  1. Close the device lid securely.
  2. Open the water valve again — it should face towards you, as shown in the image above.

4. Log and Sign Off

  1. Mark the mash additions as done on the printed recipe.
  2. Tick off the task on your todo list.

Note

The mash salts are injected into the mash automatically by the Botec recipe — no manual intervention is needed once the device is loaded.

Checklist

  • [ ] Mash salts pulled and measured per recipe
  • [ ] Salts mixed in 5 L pitcher (Kanne) with water
  • [ ] Water valve on dosing device closed before opening
  • [ ] Salt solution added without splashing
  • [ ] CaCl₂ contact areas rinsed immediately with plenty of water — if CaCl₂ used
  • [ ] Dosing device closed securely
  • [ ] Water valve reopened — facing towards you
  • [ ] Task marked on printed recipe and todo list