D-Still Polycarbonate Care & Maintenance Guide: Complete Do's and Don'ts

Plastic container with Powder content for cleaning shatter proof drinkware

D-Still Care & Maintenance Guide

D-Still polycarbonate drinkware is engineered for exceptional clarity, durability, and longevity — but getting the most out of your investment requires the right care routine. This complete guide covers everything you need to know about cleaning, maintaining, and protecting your D-Still polycarbonate glasses, so they stay crystal clear and looking their best through thousands of uses.

Why D-Still Polycarbonate Needs Specific Care

D-Still drinkware is crafted from premium polycarbonate — a material that is shatterproof, lightweight, and BPA-free, with optical clarity that rivals traditional glass. Unlike glass, however, polycarbonate has a surface that can be damaged by abrasive cleaning tools, harsh chemicals, and incorrect washing techniques. Following the D-Still care guidelines protects the surface integrity and keeps your drinkware looking premium for longer.

D-Still Care: The Do's

1. Use D-Still Poly Rejuvenate Powder

The single most important step in maintaining D-Still polycarbonate drinkware is using D-Still Poly Rejuvenate Powder as part of your regular cleaning routine. This purpose-formulated powder is specifically designed for polycarbonate surfaces — it prevents clouding, removes residue, and restores the optical clarity that makes D-Still glasses stand out. Use it regularly to keep glasses looking new, especially in high-volume hospitality environments.

2. Dry with a D-Still Polishing Cloth

After washing, always dry D-Still glasses with a dedicated D-Still polishing cloth. The microfibre construction is gentle on polycarbonate surfaces and leaves a streak-free, crystal-clear finish. Avoid rough or textured towels that can leave micro-scratches on the surface over time.

3. Rinse Thoroughly After Washing

Always rinse D-Still glasses thoroughly with clean water after washing to remove all soap and detergent residue. Residual detergent left on the surface can cause cloudiness and dull the finish over time. A thorough rinse is one of the simplest and most effective steps in maintaining long-term clarity.

4. Use a Glass Washer on a Gentle Rinse Cycle

D-Still polycarbonate drinkware is compatible with commercial and domestic glass washers. Always select a gentle or glassware cycle — lower water temperatures and reduced pressure protect the polycarbonate surface and extend the life of your glasses. A short, gentle cycle is far preferable to a long, high-intensity wash.

5. Use a Soft Sponge or Cloth for Hand Washing

When hand washing, use only a soft sponge or soft cloth. Apply gentle, straight strokes — avoid circular or twisting motions inside the glass, which can cause micro-scratches over time. A soft touch is all that's needed with the right cleaning product.

D-Still Care: The Don'ts

1. Don't Use Abrasive Cloths or Brushes

Scourers, abrasive cleaning pads, and stiff-bristled brushes will scratch the polycarbonate surface, causing permanent cloudiness and a dull appearance. This is the most common cause of premature deterioration in polycarbonate drinkware. Always use soft sponges or cloths only.

2. Don't Use Long Wash Cycles or Pot Wash Settings

Extended wash cycles and high-intensity pot wash settings expose polycarbonate to prolonged heat, pressure, and chemical contact — all of which degrade the surface over time. Always use the shortest, gentlest cycle available on your glass washer or dishwasher.

3. Don't Use Harsh Chemicals

Bleach, chlorine-based cleaners, and standard dishwasher tablets containing enzymes or strong alkalis are not suitable for polycarbonate drinkware. These chemicals break down the polycarbonate surface, causing yellowing, cloudiness, and structural weakening. Always use D-Still-approved cleaning products such as D-Still Poly Rejuvenate Powder.

4. Don't Drip Dry

Leaving D-Still glasses to drip dry allows water droplets to evaporate on the surface, leaving mineral deposits and water spots that dull the finish. Always dry promptly with a D-Still polishing cloth for a streak-free, clear result.

Step-by-Step: Hand Washing D-Still Drinkware

  1. Rinse the glass immediately after use to remove drink residue before it dries.
  2. Fill a sink with warm (not hot) water and add the appropriate amount of D-Still-approved cleaning product.
  3. Wash gently using a soft sponge with straight, light strokes — no twisting or scrubbing.
  4. Rinse thoroughly under clean running water to remove all detergent residue.
  5. Dry immediately with a D-Still polishing cloth using gentle, straight strokes.
  6. Store upright or inverted on a clean, dry surface.

Step-by-Step: Machine Washing D-Still Drinkware

  1. Pre-rinse glasses to remove heavy residue before loading.
  2. Load glasses securely in the glass washer rack — ensure they don't knock against each other during the cycle.
  3. Use only D-Still-approved or polycarbonate-safe detergent.
  4. Select the shortest, gentlest cycle available — a glassware or rinse cycle is ideal.
  5. Remove glasses promptly at the end of the cycle.
  6. Dry immediately with a D-Still polishing cloth — do not leave to drip dry.

Preventing Cloudiness in D-Still Polycarbonate Glasses

Cloudiness is the most common issue with polycarbonate drinkware and is almost always caused by one or more of the following:

  • Use of abrasive cleaning tools
  • Harsh or incompatible cleaning chemicals
  • Long or high-temperature wash cycles
  • Drip drying instead of polishing dry
  • Mineral build-up from hard water

Regular use of D-Still Poly Rejuvenate Powder is the most effective preventative measure. In hard water areas, consider a rinse aid compatible with polycarbonate to reduce mineral deposits.

D-Still Care in Commercial & Hospitality Settings

D-Still polycarbonate drinkware is a popular choice for bars, restaurants, hotels, outdoor venues, and events. In high-volume settings, a consistent cleaning protocol is essential:

  • Bars & Restaurants: Use D-Still Poly Rejuvenate Powder in every wash cycle. Polish dry after every wash. Inspect glasses regularly and retire any that show deep scratching or permanent cloudiness.
  • Outdoor & Events: Rinse promptly after use to remove sunscreen, salt, and sugary drink residue. Avoid leaving glasses in direct sunlight for extended periods when not in use.
  • Hotels & Accommodation: Use a gentle glass washer cycle and always polish dry to maintain the premium appearance expected by guests.

Storage Tips for D-Still Drinkware

  • Store glasses upright or inverted on a clean, dry surface.
  • Use dedicated glass racks or storage crates in commercial settings to prevent contact damage.
  • Keep away from sharp objects and rough surfaces that can scratch polycarbonate.
  • Avoid storing in direct sunlight for prolonged periods.
  • Do not stack glasses inside each other unless specifically designed to do so.

Frequently Asked Questions

How do I restore cloudy D-Still glasses?

Use D-Still Poly Rejuvenate Powder as a soaking treatment, then wash gently with a soft sponge and rinse thoroughly. For best results, make Rejuvenate Powder part of your regular cleaning routine to prevent cloudiness from developing.

Can D-Still glasses go in a commercial dishwasher?

Yes, on a short, gentle glassware cycle only. Avoid pot wash settings and long, high-temperature cycles. Always use polycarbonate-safe detergent and dry immediately after the cycle.

Are D-Still glasses BPA-free?

Yes. D-Still polycarbonate drinkware is BPA-free and food safe, meeting Australian food contact standards.

Can I use standard dishwasher tablets with D-Still glasses?

No. Standard dishwasher tablets often contain enzymes and harsh chemicals that are not suitable for polycarbonate. Use only D-Still-approved or polycarbonate-safe cleaning products.

How long do D-Still glasses last?

With proper care — using the right cleaning products, gentle washing techniques, and prompt drying — D-Still polycarbonate glasses are designed to withstand thousands of wash cycles and years of regular use.

Shop D-Still Care Products

Keep your D-Still drinkware in peak condition with the right care products, available at Unbreakable Drinkware: