How to Store Your Blackstone Outside (Without Ruining It)

A Blackstone (or any cold-rolled steel griddle) can absolutely live outdoors for its entire life. The cookers are designed for it. What destroys outdoor-stored griddles isn’t the weather itself — it’s specific wrong-storage habits that owners do without realizing.

This post is the realistic guide. What works, what doesn’t, and the routine that keeps an outdoor griddle in working condition for a decade.

What actually destroys outdoor griddles

Three things, in order:

Trapped moisture under a closed cover. A wet griddle covered before drying creates a sealed humid environment that grows rust within days. This is the #1 cause of outdoor-stored griddle failure.

Standing water on the cooking surface. Rain pooling on a griddle that wasn’t oiled before storage. The water sits on bare or thinly-seasoned metal, dissolves the seasoning over hours, and starts surface rust.

Generic covers that trap condensation. “Universal” covers without ventilation breathe poorly and create the same trapped-moisture problem as plastic wrap.

The weather itself — rain, snow, freezing temperatures, summer heat — doesn’t damage a properly maintained Blackstone. The cooker’s metal handles all of it. It’s how the cooker is kept through the weather that matters.

What works for outdoor storage

The routine that keeps an outdoor Blackstone healthy:

1. After every cook, oil the cooking surface. A thin layer of oil over the entire surface, applied while the plate is still warm. The oil layer prevents rain from contacting bare seasoning. This is the single most important habit.

2. Let the cooker fully cool before covering. A warm griddle under a cover creates condensation. Wait for the plate to cool to ambient (usually 30-45 minutes after a cook) before pulling on the cover.

3. Use a fitted, ventilated cover designed for your specific Blackstone model. Not a generic universal cover. Blackstone’s own covers (or quality aftermarket covers from Vbestlife, Yourenj, or similar reputable brands) are sized correctly and include ventilation. The cost difference between $30 generic and $50 fitted is the best money you’ll spend on the cooker.

4. Store the cooker on a paver, concrete pad, or stand — not directly on grass or dirt. Direct contact with grass holds moisture against the cart bottom, which rusts faster than the cooking surface itself. A simple concrete paver under each wheel costs almost nothing and prevents the issue.

5. Position out of direct rain when possible. Under an awning, against a wall with overhang, or in any sheltered location. Direct rain exposure accelerates wear on the cover, the cart paint, and the controls. A sheltered location extends the cooker’s outdoor life by years.

6. Disconnect propane between extended uses. Not every cook — but if the cooker will sit unused for more than a couple weeks, disconnect the propane regulator. Connections degrade with thermal cycling and weather exposure.

7. Periodic checks during long off-periods. If you go a month or more without cooking, pop the cover off, inspect, run a 15-minute warm cycle to drive off any moisture, oil if needed, re-cover.

Cover selection — what to look for

Not all griddle covers are equal:

• Heavy-duty waterproof outer fabric (typically 600D polyester or similar)
• Ventilation grommets or vents to allow moisture exchange
• Fitted shape that matches the cooker model
• Drawstring or strap closure at the bottom to prevent wind lift
• Resistance to UV degradation (cheap covers crumble in sun within 2-3 years)

Bad covers:

• Thin, plastic-feeling material
• “One size fits most” without specific sizing
• No ventilation at all
• Closure mechanisms that don’t actually grip the cart

The price difference between bad and good covers is $10-30. The protection difference is years vs. months.

Climate-specific notes

Hot humid climates (Gulf Coast, mid-Atlantic): humidity is the constant threat. Daily oil after cooks; cover religiously; consider seasonal indoor storage for off-season months if a garage is available.

Cold wet climates (Pacific Northwest, Northeast): rain and snow are constants. The fitted cover matters even more. Knock snow off the cover after storms — heavy snow loads can damage covers and warp lids.

Cold dry climates (Mountain West, parts of the Midwest): freeze-thaw cycles stress metal less than humid climates do. Most Blackstones thrive here with basic outdoor storage.

Hot dry climates (Southwest): UV is the threat. Cover quality matters; replacing UV-degraded covers every 2-3 years is normal.

What if I forget the routine sometimes

Reality check: nobody hits the routine perfectly. A few missed oil passes, a cover left off after one cook, a forgotten cooker that sat through a rainy weekend — these things happen.

The seasoning is forgiving. Surface rust from one wet weekend is fixable in 30 minutes (cleaning rusted grates guide covers similar principles for griddles).

Worst case is a full restoration. How to restore a rusted Blackstone covers the recovery for cookers that have been more seriously neglected.

The maintenance routine is about avoiding the project, not about being perfect. Aim for 80% adherence and the cooker stays healthy.

When to bring it inside

Some scenarios warrant indoor storage even if outdoor has been working:

• Extended off-season (4+ months unused) in a humid climate
• Severe weather event (hurricane, blizzard, hail)
• Major construction or yard work nearby that produces dust and debris
• The cooker has had repeated rust issues despite good outdoor habits

Indoor storage is always safer, just less convenient. A garage corner is the ideal compromise.

Frequently asked questions

Is it really okay to leave a Blackstone outside year-round? +

Yes, with proper maintenance. The cooker is designed for outdoor use. The failure modes are all preventable: cover the cooker correctly, oil before storage, don't trap moisture. Owners who do these things have Blackstones still running after 10+ years of pure outdoor storage.

Will winter storage outside damage the burners? +

If the propane is disconnected and the burner area stays dry under the cover, no. Cold temperatures don't damage gas grill burners. Moisture intrusion does — which is why the cover and disconnection matter.

Can I leave the propane tank connected through outdoor storage? +

For short periods (a few weeks), fine. For longer periods, disconnect — the regulator and hose connections degrade faster when exposed to thermal cycling and weather. Disconnect, store the tank upright outside the cooker (never indoors), reconnect when ready to cook.

What's the most common mistake outdoor Blackstone owners make? +

Covering a wet or warm cooker. Both create trapped moisture under the cover, which produces rust within days. Always cool fully and dry before covering.

Does a fitted cover really make that big a difference? +

Yes. The price difference between a generic cover and a fitted Blackstone cover is the best money the cooker buys you. Fitted covers ventilate properly, fit snugly enough to keep wind from lifting them, and last years longer in sun and weather. The math works out to maybe $5/year for genuinely better protection.

Related reading

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  How to Restore a Rusted Blackstone (Complete Guide)

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