Brewing, science and practice

Brewing Science and practice
Dennis E. Briggs, Chris A. Boulton, Peter A. Brookes and Roger Stevens

Copyright © 2004 Woodhead Publishing Limited and CRC Press, LLC

Published by Woodhead Publishing Limited, Abington Hall, Abington Cambridge CB1 6AH, England www.woodhead-publishing.com Published in North America by CRC Press LLC, 2000 Corporate Blvd, NW Boca Raton FL 33431, USA Firstpublished 2004, Woodhead Publishing Limited and CRC Press LLC ß 2004, Dennis E. Briggs, Chris A. Boulton, Peter A. Brookes and Roger Stevens The authors have asserted their moral rights. This book contains information obtained from authentic and highly regarded sources. Reprinted material is quoted with permission, and sources are indicated. Reasonable efforts have been made to publish reliable dataand information, but the authors and the publishers cannot assume responsibility for the validity of all materials. Neither the authors nor the publishers, nor anyone else associated with this publication, shall be liable for any loss, damage or liability directly or indirectly caused or alleged to be caused by this book. Neither this book nor any part may be reproduced or transmitted in any form orby any means, electronic or mechanical, including photocopying, microfilming, and recording, or by any information storage or retrieval system, without prior permission in writing from the publishers. The consent of Woodhead Publishing Limited and CRC Press LLC does not extend to copying for general distribution, for promotion, for creating new works, or for resale. Specific permission must beobtained in writing from Woodhead Publishing Limited or CRC Press LLC for such copying. Trademark notice: Product or corporate names may be trademarks or registered trademarks, and are used only for identification and explanation, without intent to infringe. British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library. Library of CongressCataloging-in-Publication Data A catalog record for this book is available from the Library of Congress. Woodhead Publishing Limited ISBN 1 85573 490 7 (book) 1 85573 906 2 (e-book) CRC Press ISBN 0-8493-2547-1 CRC Press order number: WP2547 The publisher's policy is to use permanent paper from mills that operate a sustainable forestry policy, and which have been manufactured from pulp which isprocessed using acid-free and elementary chlorine-free practices. Furthermore, the publisher ensures that the text paper and cover board used have met acceptable environmental accreditation standards. Project managed by Macfarlane Production Services, Markyate, St Albans, Hertfordshire (e-mail: macfarl@aol.com) Typeset by MHL Typesetting Ltd, Coventry, Warwickshire Printed by TJ International,Cornwall, England

Copyright © 2004 Woodhead Publishing Limited and CRC Press, LLC

Contents

Preface 1 An 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12 1.13 1.14 1.15 outline of brewing Introduction Malts Mash tun adjuncts Brewing liquor Milling and mashing in Mashing and wort separation systems The hop-boil and copper adjuncts Wort clarification, cooling and aeration Fermentation Theprocessing of beer Types of beer Analytical systems The economics of brewing Excise References and further reading 1.15.1 The systems of malting and brewing analysis 1.15.2 General references

2

Malts, adjuncts and supplementary enzymes 2.1 Grists and other sources of extract 2.2 Malting 2.2.1 Malting in outline 2.2.2 Changes occurring in malting grain 2.2.3 Malting technology 2.2.4 Malt analyses2.2.5 Types of kilned malt 2.2.6 Special malts

Copyright © 2004 Woodhead Publishing Limited and CRC Press, LLC

vi Contents 2.3 2.4 2.5 2.6 3 2.2.7 Malt specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjuncts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3.1 Mash tun...