Technical Cook-Time Reference & Quality-Gated Meals // No Fluff, Just the Instructions
MEAL INSTRUCTIONSNO FLUFF, JUST THE INSTRUCTIONS
slow-cooker ChartsDATASHEET // CT-SC-024
slow-cookerSTATE: DRYVERIFIED DATASHEET

How Long to Cook Brown Lentil Soup (1 lb Dry Brown or Green Lentils, Unsoaked) in the slow cooker

Specification: 1 lb dry brown or green lentils rinsed and picked over, 8 cups low-sodium vegetable broth, mirepoix (2 carrots / 2 celery ribs / 1 onion), 1 can diced tomatoes, 2 bay leaves — no acid added early

Target Temp
Heat Waves
LOW (6–7 hrs)
Low & Slow
Total Time
Clock Time
6–7 hours on LOW
Total Cook Window
Flip Mark
Flip Action
No Flip
Continuous Cook
Internal Safe Temp
Thermometer Probe
USDA Safe Pull

3-Step Execution Protocol

1
Preheat & Prep

Add brown lentil soup (1 lb dry brown or green lentils, unsoaked) (1 lb dry brown or green lentils rinsed and picked over, 8 cups low-sodium vegetable broth, mirepoix (2 carrots / 2 celery ribs / 1 onion), 1 can diced tomatoes, 2 bay leaves — no acid added early) to the slow cooker. Set to LOW (6–7 hrs).

2
Slow Cook

Cook for 6–7 hours on LOW. Keep lid on; do not stir unless specified.

3
Check & Rest

A lentil crushed against the pot wall with the back of a spoon smears into a paste with no chalky centre, and the broth has thickened enough that a spoon dragged through the middle of the pot leaves a brief valley before closing. Rest for 10 minutes before serving.

Verification Basis & Testing Rig

USA Dry Pea & Lentil Council "Slow-Cooker Lentil Guidance" (brown/green lentils cook fully in 6–8 hrs unsoaked on LOW); USDA FoodData Central legume cooking notes on acid-firming pectin; Crock-Pot 6-Qt recipe archive "Hearty Lentil Soup" (LOW 6–7 hrs); no probe target — doneness is a paste/smear test standard for legumes across the dataset, so internalTempTargetF is intentionally omitted per HR-2.

Pro Tip: Hold the vinegar, lemon juice, and any large dose of tomato acid until the last 30 minutes — lentils cooked in acid from the start stay pebbly and never fully break down, because low pH firms the pectin in the seed coat. Diced tomatoes at the start are fine (they are diluted enough), but a squeeze of lemon at the end brightens the whole pot.

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