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Meth Lab Guide

Complete guide to meth cooking on Justified DarkRP - equipment, process, and selling tips

Meth Lab

Running a meth lab is a profitable criminal production job for the Meth Cook (/methcook). You'll combine ingredients, filter and vent the mixture, freeze it into product, and sell it to a Broker.

Criminal Activity

Meth production is highly illegal. Police can raid your base, and selling meth makes you wanted. Build a secure, hidden location.

Guide Accuracy

We keep this guide up to date, but specific values may change with server updates. Always check in-game for current figures.


Equipment Overview

Everything is in the F4 menu.

Production Machines

EquipmentPricePurpose
Combiner£15,000Mixes ingredients into meth sludge (max 1)
Gas Filter£1,000Attaches to the Combiner. Stops the poison gas and saves your yield
Frezzer£2,000Freezes sludge into meth. Comes with its own Freezing Trays (max 1)

Supplies

ItemPricePurpose
Methylamin£1,000First ingredient. A batch needs 1 to 3
Aluminium£100Second ingredient. A batch needs 1 to 3
Transport Crate£250Holds finished meth for transport
Transport Palette£100Holds crates for bulk selling

The Cooking Process

Setting Up Your Lab

Place your machines. Set down the Combiner and Frezzer with enough space for trays to eject

Pick a grade. Aim at the Combiner's screen and choose Meth, Glitter or Melange. The grade locks once you load the first methylamin

Buy ingredients. Get Methylamin and Aluminium from the F4 menu. The screen shows how many this batch needs

Buy a Gas Filter. You'll need it before the filtering phase starts

The other grades on the screen are locked to the Industrial Chemist.


Venting

While the batch finishes, a gas gauge fills. Press E on the Combiner to vent it.

  • The longer you hold the gas, the more meth a vent adds
  • Hold it too long and the pressure slows the batch down
  • At the top of the gauge the Combiner vents by itself, for less
  • Every vent wears your filter. A vent your filter can't cover leaks poison into the room

The Gas Filter

The filter is not optional:

With FilterWithout Filter
✅ Full yield❌ Only a quarter of the batch
✅ No poison❌ Poison damage while cooking

Filters have limited health and wear out over time. Replace them when they break.


Level Perks

As your Meth Cook level grows, you can claim free perks from Ambrose, the Perk Dealer:

LevelPerkEffect
10Bulk TraysYour freezing trays hold twice as much
20Reinforced CrateBigger transport crates
30Spare ElementYour filters wear at half rate
40Pressure WashYour Combiner comes clean in one pass
50Feed HopperYour Combiner loads empty trays from a nearby Frezzer by itself

At Meth Cook level 10 you can also become an Industrial Chemist (/industrialchemist), who runs a bigger lab and cooks every grade.


Tips for Success


Common Problems


Quick Tips

  • Filter is mandatory: a quarter of the yield without it, plus poison damage
  • Vent at the right time: not too early, not at the cap
  • Ice breaking: press E a few times on frozen trays
  • Selling makes you wanted: be ready for police attention
  • Equipment limits: one Combiner and one Frezzer at a time
  • Clean your gear: after every batch

Values May Vary

Processing times, yields, and prices may be adjusted. Check the in-game UI for current values.

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