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The mould is where the glass gob is shaped into the finished form, prior to annealing and cooling. The forming process for containers is completed by the blow and blow process, or the press and blow method.

Temperature measurements at the mould are critical to ensuring consistent product quality. However, the rapid operation of the mould means that a short-wavelength, non-contact device is needed, providing a very short response time.

By ensuring the mould is sufficiently heated, consistent glass quality can be monitored and scrap product avoided. Glass will stick to a mould which is too cold, producing a substandard finished product.

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