I don't even know that I should ask but.........

salut oui je te conseille de rincez ta plante pendant au minimum 1 semaines a 2 semaines. pour éliminer toute trace de nutriments dans la plante elle aura meilleur gout et piquera moin la gorge . bonne soirée

That's one of the most controversial topics in this field :) There is no correct answer in my opinion. It depends on many factors and grower's own choice and methods. I don't really flush to see huge runoff but still cut the nutes and give water only for the last couple of weeks. I don't think it effects taste but still cleaning the salts from the substrate sounds clever.

I always flush a bit 1 or 2 weeks before harvest. Is not needed, you will only have a bit of better taste from your buds at the end. Same with leaving 48h in the dark, for me it does not work well so I did not done it last times. A matter of taste.

I chop, then flush to prepare the soil for the next grow.

I am of the secreted and generally, outcast order of order of the no flush, white ash = proper cure ie proper RH at rest. Not whether or not you quit feeding your plant. I have come across some interesting papers that highlight they're not being a palpable difference in biomass regarding flush or no flush. Some would argue that If there's no difference in production then why do it, it's a waste of time to feed. Those people are not me

for the record, i'm 'lazy' once i know with 100% certainty the canopy won't degrade to shit before ripening finishes. The last several irrigations i'm just giving plain water, but it's not because i think it provides a benefit.

The previous reasons given for why people flushed before harvest were tested and found not true. It has zero impact on mineral content of flower. Then, they made up new reasons. Interpret that as you like. Blind taste test with an insufficient sample size showed that people could not discern between a flushed and non-flushed harvest. If it doesn't change molecular constitution of the flower, how exactly is it impacting the flower? Flushing impacts the medium. It will dilute it. It doesn't impact how the flower was constructed in the several weeks leading up to flushing, even if it did have an impact on flower constitution. There is no mineral excretion system in the plant. Once it is taken in it is either used fast enough or builds up to problematic levels if given enough time. Avoid that and there is no reason to flush. Usually you can just give plain water for an irrigation or two to course correct level of nutrition in the medium. You have to ignore a problem for a long time to justify stressing the rootzone and running extra gallons through it. it's a drastic tool to correct previous fertilization mistakes that can be avoided. You can be lazy the last couple weeks if you have a strong canopy. If you water soil to saturation with minimal runoff, there's plenty of nutrients that can be sucked dry and the leaves can fill in the rest.... it's fine to give plain water as long as the plant has enough building blocks to continue ripening process. if it is adding mass, terpenes or trichomes, then it needs building blocks - law of conservation of mass... things are not built from nothing. all other factors the same, you can be lazier for longer at end with soil than soilless... but in extreme contexts that generalization could be wrong, too. depends on level of amendments in soil and how much you were fertilizing prior... in soilless there's generally a lower level of nutrition and will be exhaused faster with plain water irrigations.

It depends of the quantity of nutrients you have used during the life cycle. If you have reached the harvest window but your plant is still lush green, it’s better to flush it and let the plant break down its nutrients. This process can take 2-3 weeks. If your plant triggered its natural senescence and reached harvest by the same time you did a "Perfect". 1 week of just plain water will be enough. The main goal is to force the plant to use the starch stocked with the glucose in the roots system. The glucose will stay but the starch will be used in a last attempt to keep the flower alive for pollination….. The starch will turn into sugar during the curing process, making your weed a Cannabis Cup award winner full of sweetness with high sugar content.

OK flushing in the middle of a grow is to get rid of salts and at the end its the same sort of thing only you should be lowering feed prior to only water and this is call a flush aswel, it's to get the plant to use up it's nitrogen more than anything... It's not flushing a plant only the medium to change the plants trajectory...