How to Care for Your Sublimation Mug

Your Grey Barn mug just showed up and the colours are vibrant, the design is sharp, and your morning coffee suddenly feels more important. Let’s keep it that way.

Sublimation mug care is simple, but there are a few things worth knowing so your custom design stays looking fresh for years instead of months. Here’s the quick guide.

What Is Sublimation and Why Does It Matter?

Sublimation is a process where ink is turned into a gas using heat and pressure, and that gas bonds permanently with the polymer coating on the mug’s surface. The design doesn’t sit on top of the mug like a sticker or a screen print — it’s embedded into the coating itself. That’s why sublimation prints are so vibrant and detailed.

This also means the design won’t peel, chip, or flake off. But the coating it’s bonded to needs a little respect to stay in top shape.

Washing — The Most Important Part of Sublimation Mug Care

Hand washing is the gold standard for sublimation mug care. Warm water, mild dish soap, and a soft sponge. That’s all you need. Wash it, rinse it, dry it. Done.

Can you put it in the dishwasher? Technically, most sublimation mugs survive the dishwasher. But over time, the repeated high heat and harsh detergents can gradually dull the colours. If you want your mug looking like day one for years, hand wash it. If you’re a dishwasher-or-nothing person, use the top rack and skip the heated dry cycle.

What to Avoid

Don’t use abrasive scrubbers like steel wool or scouring pads on the printed surface. They can scratch the polymer coating and dull the design. A regular sponge or soft cloth handles everything.

Avoid soaking your mug in bleach or harsh chemical cleaners. They’re unnecessary for cleaning and can break down the coating over time.

Don’t microwave your mug if it has any metallic elements in the design or finish. Standard sublimation mugs without metallic accents are microwave-safe, but check the handle and rim — some mugs have metallic paint details that don’t play well with microwaves.

Handling Stubborn Stains

Coffee and tea stains happen. If warm soapy water doesn’t cut it, make a paste with baking soda and water, apply it to the stained area, let it sit for a few minutes, then gently wipe with a soft sponge. Rinse thoroughly. This works on most beverage stains without affecting the sublimation design.

Long-Term Sublimation Mug Care

Store your mugs where they won’t bang against each other. The ceramic can chip on the edges, and while that doesn’t affect the design, it affects the look. If you’re stacking mugs, put a cloth or paper towel between them.

The design on your Grey Barn mug is built to last through daily use. We’ve tested our sublimation process through hundreds of wash cycles and the colours hold up. Treat it like a mug you care about — not like a disposable cup — and it’ll stay vibrant for years.

Sublimation mug care really comes down to this: hand wash, skip the bleach, and don’t scrub the print with anything rough. Your Grey Barn mug was handcrafted in our St. Gregor workshop specifically for you. It deserves five extra seconds at the sink. We think your morning coffee does too.