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White Ash Contest 2026

  • The photo must clearly show cannabis ash from your own flower
  • Only original photos taken by the participant are eligible
  • 1 entry per Grower
  • No AI-generated images
  • No digitally altered ash or manipulated entries

White Ash Contest 2026

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29 Photos participating
9d
11 comments

How clean does your flower burn?

White Ash is all about the perfect smoking shot — smooth burn, solid ash, and a joint or bowl that looks as good halfway through as it did before the first light.

Show us your cleanest burn and your whitest ash.

How & When

  • Submit a photo showing the ash from your cannabis
  • 1 photo per Grower
  • Winners are picked by the GD Team
  • THREE winners
  • Prizes shipped worldwide by Sponsors

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MindFlowers68
MindFlowers68 commented20d ago
My submission for now ( I may update it if i can get a nicer one) Is my liberty haze. That picture i took while I was trimming that plant and testing it. So that was smoking really nice for just after drying and no cure. I do personal bong packs (and quite big ones) so I do get the piece pretty hot.
00110001001001111O
00110001001001111O commented12d ago
All that "synthetic" fertilizer i use turns it nearly pitch black. 😂 I don't want to contribute to an urban myth about white ash being a dependable sign of quality, but it can be just for fun, too. Think @m0use 's post is spot on.
DrGruen
DrGruen commented13d ago
GOOD LUCK @ALL 😎
GR_1304-GrowGirl
GR_1304-GrowGirl commented4d ago
@DrGruen You too!!😇
Altitonans_Fulmen
Altitonans_Fulmen commented6d ago
Sorry, it's not a myth. Hard to swallow, though. 14 days of hanging to correct pre-harvest metabolism is a myth. In the living plant, the relationship between nitrogen, its form, and the amount of carbohydrates dictates how smoothly the final bud burns. If a plant enters harvest with excessive nitrate, it continues to aggressively synthesize proteins instead of depleting its stored starches and sugars. This buildup of unconsumed carbohydrates and green chlorophyll is what causes a harsh, throat-burning smoke. The Maillard reaction occurs post-harvest during drying, curing, and smoking, where heat and moisture loss allow reducing sugars and amino acids to recombine. The nitrogen-to-carbohydrate ratio is the true foundation of smoke quality. How the plant sinks its nitrogen and utilizes its forms drastically affects its ability to convert nitrogen into amino acids. Ammonia is made to be broken down rapidly into amino acids; nitrate is not, its highly stable and is very difficult to break down if left in the plant. This nitrogen cannot be attached to carbohydrates and oxidized, meaning you cannot "reduce" it to make it "smooth". Clean, white ash is the result of complete combustion (leaving behind only pure minerals like calcium and potassium). Black ash indicates incomplete combustion. Trapped nitrates and unoxidized heavy starches lock up the carbon, preventing it from burning away cleanly.
00110001001001111O
00110001001001111O commented5d ago
@Altitonans_Fulmen I didn't dsimiss biology. I dismissed that white ash as an accurate way to discern quality of buds smoked. The point is that it cannot be trusted to mean anything specifically because it can be caused by any number of reasons not related to quality of the buds. There is a fundamental lack of resolution and consistency. That objectively makes it a horrible way to assess quality. --- The rest isn't worth responding to other than to say i don't believe you've taken any formal, college-level biology or chemistry, That free version of a research paper you linked is missing relevant information to form any useful conclusions. The only thing you know for certain from the free version is that treating a plant like shit and overdosing it with insane levels of nitrogen will reduce THCA concentration by 63%. Might as well pour kerosene on it if feeding at 320 mg*L^-1. BWahaha.
Altitonans_Fulmen
Altitonans_Fulmen commented4d ago
@00110001001001111O, The 'referee pivot' is classic. When the biochemistry and thermodynamics get too heavy, you call a foul on the tone, demand my academic transcripts, and retreat to your one safe hill, that ash color is a low-resolution indicator. I’ve already agreed that ash color is a crude trailing metric. We don't need to keep re-litigating that. But hiding behind an ad hominem dismissal about college biology doesn’t make the science disappear. You cherry-picked the extreme 320 mg*L^-1 N ceiling from Bernstein's abstract to make a joke, while completely ignoring the actual data across the rest of the gradient. Bernstein and Saloner’s research clearly shows that elevated late-stage nitrogen actively suppresses secondary metabolites. Do you deny that forcing a plant to constantly process raw, un-metabolized nitrates forces a primary carbon trade-off away from terpenes and cannabinoids? Do you deny that highly soluble synthetic nitrate salts bypass the biological bottleneck of organic mineralization, allowing plants to passively flood their vacuoles with unoxidized NO3-? You can't separate the final burn from the living metabolism. Unmetabolized nitrates and trapped carbohydrates are scientifically proven combustion disruptors. When ignited, they undergo incomplete thermal decomposition, lowering the core temperature and leaving behind char (black ash) and acrid NOx gas. You claim multiple paths lead to white ash, which is true. But the path of a cleanly matured, tapered-nutrient plant that completely vaporizes its carbon skeleton isn't 'made up.' It’s organic chemistry and thermodynamics. If you want to dispute the actual GS-GOGAT cycle trade-offs or tobacco smoke science, I’m all ears. Otherwise, the credential-checking is just a weak shield. Not my fault you haven't done your homework. Don't shoot the messenger. I come in peace!
00110001001001111O
00110001001001111O commented4d ago
@Altitonans_Fulmen , Didn't demand anything... elevated late-stage nitrogen levels wasn't even relevant.. not going down these rabbit holes. The only relevant thing was that white ash is not an accurate way to assess quality... still true. you didn't even read what i said if that's your response to the 320ppm comment. your retort is unhinged. white ash is a bad way to assess quality of smoke... don't need to make it more complicated than that. nothing else matter other than the inconsistency and inaccuracy of the method.
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GR_1304-GrowGirl
GR_1304-GrowGirl commented4d ago
Good luck to everyone!!!!