The number 710 is OIL written upside down, and in cannabis culture it has come to stand for extracts and concentrates. Seed sellers use the 710 label for genetics that growers pick when they plan to turn harvests into hash or rosin. If that is your goal, choosing the right seeds is the first step. Some plants wash and press beautifully, and others look frosty but give little return. This guide explains what makes a strain good for extracts, the traits to look for, how to grow for resin and which solventless methods suit home growers. It is written for adults 21 and older who live where home cultivation and home processing are legal.

Check the rules first

States treat concentrates differently from flower. Some allow home processing of legally grown plants with simple methods, and some restrict it. Many have lower possession limits for concentrates. Check your state and local rules first. This guide covers solventless methods only. Never use flammable chemical solvents at home.

What makes a strain good for extracts

Resin quantity

The most obvious trait is how much resin a plant makes. Frosty buds with dense coverage are a good start, but quantity alone is not the full story.

Trichome head size and stability

For ice water hash, resin heads need to snap off cleanly in cold water. Larger, sturdy heads that separate easily from their stalks tend to wash well. Some plants have plenty of resin, but the heads stay stuck or break apart, which lowers returns.

Greasy vs dry resin

Hash makers often describe resin as greasy or dry. Some greasy resin is great for pressing rosin but can clump in washing. Dry, sandy resin often washes well. Breeders who select for solventless work look for plants that behave well in both.

Aroma that survives

Terpenes give extracts their aroma and flavor. Some plants keep their scent through washing and pressing better than others. Strains known for loud aroma are popular picks.

Traits to look for on seed listings

Trait	Why it matters
Notes on hash or solventless use	Breeder has tested washing or pressing
Heavy resin coverage	More raw material
Sturdy structure	Supports dense buds without rot
Mold resistance	Resin rich buds can trap moisture
Reasonable flowering time	Easier to plan harvest timing

Our 710 seeds collection gathers genetics chosen with extracts in mind. Read each listing for breeder notes on resin and wash performance.

Families often linked with extracts

Some strain families come up again and again in hash making circles. Many growers name lines in the Kush, Cookies, Gelato and Chem families as good candidates, along with certain fruity crosses. Results still vary plant to plant, even within the same pack. Serious hash makers often grow several plants from one strain and keep notes on which wash best.

Photoperiods vs autoflowers for extracts

Photoperiod plants give you control over size and timing, and many classic hash plants are photoperiods. Modern autoflowers have improved a lot, and some produce good resin in a short time. If you grow in a small space or a short season, an autoflower with strong resin notes can still be a fine choice.

Growing for resin

• Healthy plants first. Good resin starts with healthy leaves and roots. Avoid stress late in flower.
• Steady light. Strong, even light through flower supports resin production.
• Cool nights late in flower. A modest drop at night may help preserve aroma.
• Controlled humidity. Keep humidity in late flower low enough to avoid mold.
• Gentle handling. Touching buds can knock off trichomes. Handle plants as little as you can near harvest.

Harvest timing for extracts

Many hash makers harvest when most trichomes look cloudy with only a few amber heads. Check with a loupe on buds, not sugar leaves. Some fresh frozen hash makers freeze plants right after harvest to keep resin heads brittle and preserve aroma. Others dry and cure first. Both work.

Solventless methods for home growers

Dry sift

Dried buds or trim are rubbed gently over fine screens. Resin falls through and collects as kief. This is the simplest method and needs very little gear.

Ice water hash

Plant material is stirred in ice water and filtered through bubble bags. Our bubble bag guide in this series covers bag sizes and technique.

Rosin

Heat and pressure squeeze resin out of flower, hash or kief. Small presses and parchment are all you need. Rosin from hash often gives cleaner results than rosin from flower.

What to keep in mind

Extracts concentrate everything in the plant. Start with clean, pest free plants grown without heavy sprays late in flower. Keep tools and surfaces clean. Store finished hash or rosin in a cool, dark place in sealed containers, away from children and pets.

Storing harvests before processing

If you will not wash or press right away, store your material well. Fresh frozen growers bag whole buds and freeze them quickly, then keep them frozen until washing. Dry material should be cured in airtight jars and kept cool and dark. Heat, light and rough handling all break down resin and fade aroma over time, so process within a reasonable window when you can. Label each bag or jar with the strain and harvest date so you can compare results later.

Picking your first 710 strain

1. Choose genetics with clear breeder notes on resin and solventless use.
2. Match flowering time and size to your space.
3. Grow more than one plant if you can, since results vary.
4. Keep notes on which plants wash or press best.

Final thoughts

The best 710 seeds are the ones with sturdy, plentiful resin that separates cleanly and keeps its aroma through processing. Look for breeder notes on solventless use, grow healthy plants with steady light and controlled humidity and harvest at the right time. Start with simple dry sift or ice water hash, and keep good notes so each harvest teaches you something.

Grow legally and responsibly

Home cultivation is only legal in some states, and each state sets its own plant limits, locking rules and rules about whether plants can be visible from a public place. You must be 21 or older to buy seeds from Kind Seed Co, and you should grow only where your state and city allow it. Check your state rules in our guide to the legal requirements for growing weed plants in your state before you plant. Federal treatment of cannabis seeds is also changing, so read our December 11 2026 seed rule explainer before you order. Keep plants and harvested flower locked away from children, pets and visitors, and never drive after using cannabis. This article is general information about gardening. It is not legal advice and it is not medical advice.

Frequently asked questions

What does 710 mean in cannabis?

It is OIL written upside down and is used as shorthand for extracts and concentrates.

What makes a strain good for hash?

Plentiful resin with sturdy heads that break off cleanly in cold water, plus aroma that survives processing.

Can autoflowers be used for extracts?

Yes. Some modern autoflowers produce good resin, though many classic hash plants are photoperiods.

What solventless methods can I use at home?

Dry sift, ice water hash and rosin pressing are common home methods. Check local rules first.

Ready to start

Browse the full range in the Kind Seed Co shop or go straight to 710 seeds. Kind Seed Co sells only to adults 21 and older. Always follow the home grow laws where you live.