Opening and Closing Rectangular Window Tins

Rectangular tins with clear plastic windows on top provide convenient visibility of contents without needing to open them. The clear tops can lift off to access the products inside. When using this style of rectangular tin with a clear top, there are some useful techniques for easily opening and properly closing them.

Preparing to Open the Tin

Before opening a rectangular window tin, follow these tips:

• Make sure your hands are clean and dry.
• Read any labeling for opening instructions.
• Locate the seam where the lid meets the base.
• Identify if there is a pull tab or other opening mechanism.
• Clear space to set the lid down safely.

Having a clean workspace and understanding how the tin functions will make opening it smooth and easy.

How to Open the Lid

There are two main techniques for opening rectangular tin with a clear top:

1. Lifting the Lid Directly

• Place thumbs on both short sides of the lid, towards the seam edge.
• Press thumbs down to break the seal while lifting up.
• Lift lid fully off the base and set aside carefully.

2. Using the Pull Tab

• Locate pull tab on rim of lid, usually on one short side.
• Grasp tab and pull up to break seal.
• Continue pulling tab up and back to lift lid off.
• Set lid down gently using pull tab.

Pull tabs provide leverage to make opening easier. But lifting directly works on tins without tabs. Go slowly to avoid splashing contents.

Accessing Contents Safely

Once the window tin is open, you can access the contents inside. Follow these tips for safety:

• Avoid sharp edges when reaching into the tin.
• Use care when products are loose or liquid.
• Don't overfill when taking items out.
• Use clean utensils when appropriate.
• Transfer items to another container if needed.

Take care not to cut yourself on exposed metal edges. Use secure containers for transferring items to avoid spills.

Closing the Rectangular Window Tin

To properly close the rectangular tin with a clear top after use:

1. Replace any remaining contents neatly.
2. Check that no debris is on the sealing surfaces.
3. Orient lid squarely over the base.
4. Lower lid straight down onto the rim.
5. Press down firmly around the perimeter to reseal.

You should hear and feel the lid snap back into place when closed properly. Pressing down on the edges ensures an airtight seal.

Causes of Improper Sealing

If the rectangular window tin does not seal properly, the issue may be:

• Debris or crumbs trapped in the seal.
• Dents or damage around the rim.
• Cracked or warped lid.
• Moisture or liquids interfering with adhesion.
• Overfilled contents preventing closure.

Check for any particles obstructing the seam. Avoid overfilling. And do not use tins with damaged edges or lids.

Storing Closed Window Tins

Once closed properly, rectangular window tins should be stored by:

• Tightening lids periodically to maintain seal.
• Storing in a cool, dry place.
• Keeping out of direct sunlight.
• Avoiding sources of heat or cold.
• Storing tins with hazardous contents properly apart.

Follow any specific storage instructions on the label. Rotate stock to use older tins first. Proper storage preserves freshness and prevents leakage.

Cleaning Window Tins

For cleaning empty rectangular window tins:

• Disassemble lid and base fully.
• Wash with mild detergent and water.
• Use non-abrasive sponge or cloth.
• Rinse and dry fully.
• Do not submerge or soak tin components.

Avoid harsh cleaners that can damage the tin and window material. Always fully dry and reseal after washing.

Rectangular tins with clear window tops provide visibility combined with secure containment. Learn the proper techniques for opening, accessing contents safely, and closing them tightly. Follow guidelines for proper storage and cleaning empty tins. With careful handling, rectangular window tins deliver durable, long lasting product packaging and storage.