Grandaddy Stink is Green Crack mixed with a Donut in Schedule I: one base strain, one cheap mixer, and a product carrying Energizing and Calorie-Dense. The catch is that “Grandaddy Stink” is a name, not an item, and your save may call the same mix something else. Below we cover the recipe step by step, why the name varies, what the seeded mixing setting added in 2026 means for this recipe, and what to mix into it next.
The Recipe
- Grow Green Crack. Green Crack is one of the base marijuana strains. Per community documentation its seeds come from Albert Hoover, the seed supplier, once your rank unlocks them. Its base effect is Energizing.
- Get a Donut. Donuts are an inexpensive mixing ingredient, sold at the Gas-Mart according to early player reports. On their own they carry the Calorie-Dense effect.
- Mix them at a mixing station. Put the Green Crack in as the product and the Donut in as the ingredient. The mixing station shows you a preview of the resulting product before you commit, so you can confirm both effects are there.
- Name it. The first time you discover a new mix, the game asks you to name it (more on that below).
Because Green Crack starts with a single effect and the Donut adds a second without transforming the first, you come out with a two-effect product for the price of one cheap mixer. That is the appeal: it is one of the easiest ways to add value to a low-tier strain early on.
If you are using the Mixing Station Mk II, you can mix up to 20 items at once, and the station inserts ingredients automatically. Chemists can run it too, so a batch keeps going while you are elsewhere. The v0.4.3 update in February 2026 fixed the Mk II’s threshold being 10 instead of 20, so older reports of it stalling at 10 no longer apply.
Why Your Save Might Not Call It Grandaddy Stink
Schedule I does not have a fixed list of named strains. It has base products and mixers, and the name attaches to whatever combination you create. When you discover a new mix, the game suggests a name, and players note you can type your own or roll the dice button for a new suggestion. The v0.2.7 patch notes say suggested names are “generated deterministically, meaning everyone should get the same suggested name for the same combination of ingredients”, which is why so many players ended up with the same “Grandaddy Stink” for this recipe.
Not everyone does, though. One Steam discussion thread is titled “My Granddaddy Stink is called Aspen Death”, and players there explain that you can reroll or overwrite the suggestion. So if you search your products list and cannot find it, look for a Green Crack mix with Energizing and Calorie-Dense instead. The name is shorthand; the ingredients are what matter.
This is also why searching for a “Grandaddy Stink seed” turns up nothing. You are not looking for a seed, you are looking for a recipe. Do not confuse it with Granddaddy Purple, which is a genuine base strain with its own seeds.
Seeded Mixing: When This Recipe Will Not Work
The v0.4.5 Anniversary Update in March 2026 added a seeded mixing setting. Early player reports describe it as an option for new saves that randomizes mixing outcomes per playthrough, so the same ingredients will not produce the same effects in every save.
If you started a save with seeded mixing on, Green Crack plus Donut may not give you Energizing and Calorie-Dense. Use the mixing station preview to see what your save actually produces before buying ingredients in bulk. On a standard save, the recipe works as described above.
Where to Take It Next
Grandaddy Stink is usually a stepping stone, not a destination. Every mixer either adds an effect or transforms one that is already there, and that distinction is the whole system. Simple effects stack onto any base. Complex ones only appear when a mixer converts an existing effect into something else, which is how results like the Schizophrenic effect are produced.
Some players recommend Paracetamol as the next mixer. Be careful: community mixing databases list Paracetamol as converting Energizing into Paranoia, which would swap away one of the effects you just built. Whether that is worth it depends on what your customers want, so check the preview and your buyers’ favourite effects before committing. As a rule:
- Match the product to the buyer. Since v0.4.3 the contacts app shows each customer’s most ordered products, so you can see who is actually buying what.
- Do not over-mix. Every extra mixer costs money and time, and it can transform an effect you wanted to keep.
- Keep a cheap recipe running. High-value products earn more per unit, but a cheap, reliable mix keeps volume moving while you scale.
Once you are producing more than you can sell yourself, our guide to picking customers for your dealers covers which buyers to hand over. For the basics, see how to open your inventory, and the rest of our Schedule 1 guides cover the supply chain.
Frequently Asked Questions
What is the Grandaddy Stink recipe in Schedule 1? Green Crack as the base product, mixed with a Donut at a mixing station.
What effects does Grandaddy Stink have? Energizing, from the Green Crack, and Calorie-Dense, added by the Donut. On a save with seeded mixing turned on, the result may differ.
Why is my mix not called Grandaddy Stink? The game suggests a name when you first discover a mix, and you can reroll or type your own. Look for the Green Crack mix with Energizing and Calorie-Dense in your products instead.
Is Grandaddy Stink the same as Granddaddy Purple? No. Granddaddy Purple is a base strain grown from seeds. Grandaddy Stink is the common name for a Green Crack and Donut mix.
What should I add to Grandaddy Stink? It depends on your buyers. Community databases say Paracetamol turns Energizing into Paranoia, so check the mixing station preview before following any recipe that adds it.